1st of all, these strings are not for everyone. You will give up brightness in favor of a percussive thump. But it is the sound of surf, rockabilly, spaghetti western, and some other styles. I have these (.11s) In a couple of jazzmasters, .10s in a tele and .12s on a Gretsch 5420. They age like wine, I like them better after one or two years. And that is another pro, they usually last years. My favorite strings.